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Use an OTG (on-the-go) USB cable to connect your HackRF/RTL-SDR to an Android phone/tablet and this app will show you the RF spectrum(frequency magnitude and waterfall plot)!You can browse through the frequency spectrum just by using scroll and zoom touch gestures. Additional features as of today are:- select FFT size- activate optional averaging and peak holding- select color schema for the waterfall plot- select drawing types for the FFT: line or bars- read samples from a file (generated by Michael Ossmann's hackrf_transfer tool or by rtl_sdr)- AM/FM/SSB audio demodulation- adjust squelch and channel width- RTL-SDR support- Record to a raw IQ file compatible with hackrf_transfer, GNU Radio, ...

This app is in active development and I'm currently working on the following features:- Optimizing the signal processing to lower CPU usage and increase filter performance- Bookmarks- Scanner (scan a specific range for the strongest signal)I also try to keep the app stable and as bug-free as possible. Bugreports are always welcome and I promise to work hard to resolve every one of them! Note that there is a loggingfeature in the settings which helps a lot with trouble shooting any errors.

PERMISSIONS:This app uses the INTERNET permission only to connect to the local rtl_tcp instance used by the RTL2832U driver. The WRITE_EXTERNAL STORAGE permission is only used to write log files to the SD card (disabled by default).

WHAT YOU NEED:In order to use this app you will need:- A HackRF or an RTL-SDR dongle (this is obvious xD)- An Android device that either supports USB OTG (please google if your device supports OTG!) or has an USB host port- An USB OTG cable (costs about 3$) to connect the HackRF/RTL-SDR to your Android device (not needed if your device has a full size USB host port)- Only for RTL-SDR: The free RTL2832U driver from Martin Marinov (https://play.google.com/store/apps/details?id=marto.rtl_tcp_andro)

IMPORTANT:The HackRF/RTL-SDR is powered by the Android phone/tablet. Some phones or tablets might not deliver enough power on their USB port to power the HackRF/RTL-SDR. Also notice that doing the necessary digital signal processing is very CPU intensive and though I did my best to optimize the algorithms the app still needs a decent device (I recommend 2 CPU cores or more) to run fluently. Please use the 2-hour refund period provided for every Google Play app to test functionality and refund the app if it does not work for your device!

If the app is working for you and your device is not in this list, please include your phone type in a short ratingand share the good news with other users ;)

Here is a list of devices that were reported NOT to work with this app (may be incomplete):- Sony Xperia Pro + HackRF (because USB output power is too low -.-)- Nexus 4 (works only with Y cable and custom ROM to enable OTG support)- Nexus 9 (Not a power issue, I am still investigating on this)

LICENSE:This application is released under the GNU General Public License v2. It is free software and the source code is available on GitHub: https://github.com/demantz/RFAnalyzer

You might wonder why you have to pay for a free app: You don't have to! The APK package is also available in thegit repository and you can download and install it from there. But keep in mind: by buying the app you will get automaticupdates and you will support my work!

LEGAL ISSUESPlease note that I am not responsible for any legal issues caused by the usage of this application. Be responsible and comply with your local law!

View ADS-B traffic on your tablet or mobile device with the ADS-B on USB receiver. Rooting you Android device is NOT required. Overlays aircraft traffic (lat/Lon/Alt) on moving openstreetmap or WAC/SEC/TAC maps. additionally you can use Low Enroute IFR Charts. Now with High Enroute IFR Charts.

DVB-T dongles based on the Realtek RTL2832U can be used as a cheap SDR, since the chip allows transferring the raw I/Q samples to the host, which is officially used for DAB/DAB+/FM demodulation. more info here http://www.rf-connect.com/http://wyjen.com/

This app enables your device to display live ADSB data (1090ES) from surrounding airborne aircraft. All you need is a supported USB dongle and an OTG cable, both available from various sources on the internet for less than $20.-.

Visit http://hiz.ch/index.php/home/adsb-receiver for more details!

The received data can also be used to display live air traffic in Avare:http://hiz.ch/fwd/ps.Avare.html

This test version is fully functional but comes with a package limit. Please consider buying the "Pro" version to support the development of this app. Thanks!!

Pro version:http://hiz.ch/fwd/ps.AvareADSBpro.html

USAGE

Attach a supported USB dongle to your Android device using an OnTheGo (OTG) cable. (Make sure your device supports OTG!) This app will automatically start once a device has been detected. Answer `yes` if you are asked to auto-open the app, it will immediately try to receive ADSB data. You should see packages flowing in quickly, depending on your location.

If you`re using Avare:Simply start the Avare External I/O Plugin app, select `WIFI` and activate listening on port 43211. You will start to see other airplane on the Avare sectional map, once enough data has been gathered. Please make sure to enable the related option `Show ADSB Traffic` in Avare.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

MAP IMPLEMENTATION

You agree to the following by using the map provided by this app:

• It is not guaranteed that this app will always use a `Google Map`. The map implementation may change at any time. • This app will not collect any personal data. • Google Terms of Service: http://developers.google.com/terms/ • Google Privacy Policy: http://www.google.com/intl/en/policies/privacy/

▌ IMPORTANT - Please read the entire description before giving feedback.IF IT DOES NOT WORK ON YOUR DEVICE, PLEASE DO NOT RATEIt is not supposed to work on every device. If it does not work, please report (with log) here -> http://goo.gl/h6JTN

☆ See list of confirmed working devices: http://usbotghelper.wordpress.com/confirmed-devices/

▌ "USB On-The-Go, often abbreviated USB OTG, is a specification that allows USB devices such as digital audio players or mobile phones to act as a host, allowing other USB devices like a USB flash drive, mouse, or keyboard to be attached to them." - Wikipedia

Any phone in which kernel supports USB Mass storage (stock OR custom kernels OR with appropriate kernel modules)If it works on your device, or you know of kernels or modules please give the details here -> http://goo.gl/h4xGl

☆ List of modules and kernels can be found here -> http://goo.gl/NXVEL

Please note that this app is an "Helper" app.. it will not magically make your kernel support USB Mass storage!

▌WARNING-------------------☆ I will not be held responsible for any damage to your device. Do not use for a long time, u may risk burning the device chip/motherboard due to the voltage supply in host mode.

▌FAQ ----------See -> http://usbotghelper.wordpress.com/faq/

▌Trouble-shooting!:---------------------------If still not working, send me debugging data (one-click for donate version) If still something does not work, mail me. I cannot reply to feedback!

Shows enumerated usb devices, and allows you to mount external mass storage devices to the filesystem. Supports advanced features like the ability to reload partition tables and reseting USB devices. It can also control the USB Host functionality of S5PC210 devices with the appropriate kernel patch (more about this later)

The application does not use the USB Host API, so it can also run on older, 2.x devices. Because of that however almost all functionality (except for the listing of USB devices) requires root (superuser) access, and a recent version of busybox installed!

The application needs a device that has USB Host (or USB OTG) functionality. Most modern high-end devices have this ability. Check the documentation and specification of your device (this functionality is usually called USB OTG or USB Host)

If your device doesn't have native USB OTG functionality, there are kernel patches for some older devices to enable the functionality, most notably for:

OTG Disk Explorer lets you to read USB flash drives as well as card readers from your Nexus 7 or Nexus 10 tablets. All you have to do is connect the flash drive to an OTG(On-the-go) cable then plug in the micro USB connector of your tablet, then open this app you will see all files in USB drive and you can open them with your favorite app viewers or editors. Current support FAT32 disk format of flash drives. Note: Lite version limit single file size to 30mb, if you need to open file larger than 30mb, please consider OTG Disk Explorer Pro.

For Wiki or Q/A, please reference this page:

http://andastudio.wordpress.com/kiwi-for-otg-disk-explorer/

If you have any issue for the app, please leave a message on this page:

The app. detects and offers solutions to issues around USB Host and OTG cables. THIS SOFTWARE WILL NOT MOUNT OR SHOW THE FILES ON A USB DRIVE. It verifies your OTG cable is good and that Android can see the USB device. Other software may be required to see the files.

Usage:1. Disconnect your OTG cable when prompted.2. Connect your OTG cable when prompted.3. If everything is OK, you will get 4 green check marks. If nothing happens or you get less than 4 green checks, tap More Info (Web) for a description of the problem.

Software can not overcome a hardware limitation. If your device does not support OTG, nothing will happen when you connect the cable. Please do not write a bad review because your hardware does not support OTG! If your device does support OTG and it is not detected by this software, please contact me via the "Email Developer" link.

USB host is a very powerful feature of recent Android based smartphones and tablets, but on many firmwares (both stock and custom) the feature is somewhat broken.

For example, at launch the Galaxy Nexus told all the apps and the Market that it supported USB host, but USB host did not actually work (this was fixed in the Android 4.0.2 update). This broke several apps.

That is just one example of many. There are even cases where OEMs advertise USB host support, but the device does not support it at all. It appears as if USB host support isn't tested by Google or the OEMs when they push out new firmwares and devices at all.

As we cannot depend on Google or the OEMs to correctly provide information regarding USB host support, and the Android framework will regularly lie about it to both the Market as well as Android apps, this application was created so you can test your device's USB host capabilities for yourself.

If you allow it, the app will also submit your results to my website, so together we can create a complete database of devices and firmwares and their USB host support.

Automatically mount and dismount USB sticks on various devices like the Galaxy Nexus, Nexus 7 and Nexus 10. The Nexus 4 is not supported - this is an issue with the device, not with StickMount !

!!! REQUIRES ROOT !!!

Various Nexus and "stock Android" devices do not automatically "mount" mass storage devices (such as USB sticks). StickMount has been made to solve this problem, and give you access to the files on your USB connected storage from all your apps.

StickMount is known to work on many devices, but is built *only* with *Nexus* devices in mind.

Once StickMount is installed and you connect a USB stick with a "USB host / OTG cable", the device will show you a popup if you want to open StickMount. It is advised to tell the device that you want to do this by default.

If you have just installed StickMount and you already had a USB stick connected, you must manually launch the program, or disconnect/reconnect the USB stick for StickMount to start working.

Mass storage devices are mounted to "/sdcard/usbStorage/xxxx/".

----- (Pro) Kill apps preventing unmount -----

Sometimes an app has a file in use located on the USB device, and won't let go of it. This can prevent StickMount from unmounting the USB device. It will seem like the device stays connected (this is harmless). StickMount Pro provides an option that attempts to kill (terminate) all the apps that are preventing the unmount from succeeding.

----- (Pro) Media scan -----

StickMount Pro supports triggering the media scanner on each (un)mount action. This will automatically make the files on your USB device available in apps like Gallery and Music. Please note that the media scanner is not a visible process on all Android devices - it might actually work silently in the background without any visual cues. It may take a minute for your files to show up, so don't panic if they don't show immediately.

Even if you have this option enabled, you can prevent folders from being scanned by placing an empty file called ".nomedia" in that folder. If you put it in the root of the USB device, the entire device will not be scanned.

----- (Pro) Mount as partition label -----

Instead of using the block device name for the partition, use the partition label as mount name, falling back to uuid or block device name if the label is unavailable.

----- (Pro) Create symbolic links -----

Create symbolic links in /mnt and /storage to the actual mounts in /sdcard/usbStorage/

----- Filesystem support -----

The filesystems supported depends on your device firmware. On most devices, at least vfat/fat/fat32 and ext2/3/4 are supported. On the latest Android versions, ntfs is also supported in read-only mode. Some devices also support exfat out the box, but most do not.

StickMount can utilize the "ntfs-3g" and "mount.exfat-fuse" binaries to add support for ntfs (untested) and exfat, but these are not included. If you place the "ntfs-3g" or "mount.exfat-fuse" files in the root of your internal storage ( /sdcard ), StickMount will automatically use them.

You can find the needed files here:ntfs-3g: http://forum.xda-developers.com/attachment.php?attachmentid=1145436&stc=1&d=1340293802mount.exfat-fuse: http://forum.xda-developers.com/attachment.php?attachmentid=806200&d=1323109372

----- Troubleshooting -----

For some users, the app appears not to work, while in fact it is the device itself or the cable not working. One OTG cable is not the other OTG cable. If you have a USB stick with a light on it, it should light up when you connect it to the Galaxy Nexus using your OTG cable. If it does not, either your cable or your Nexus is faulty. 99 out of 100 times it is going to be your cable. That the cable works fine with another device does not mean anything! Cables known to work on a one devices may not work on another device.

SD card unmounting: If your SD card unmounts when unmounting a USB device, you have a bug in your kernel. This is *not* a bug in StickMount !

--- For Root Users With Proper Kernel Only ---Frustrated by the lack of mass usb storage mounting in your android device? Well look no further. Now you can. You'll now recieve standard android notifications when you connect your device via usb. Mount and unmount with ease.

And as an added feature now you can automatically mount your sd card. Just plug your device in and up comes the file window on your computer. (this feature can come in handy for any rooted device)

Add to that OTG Drive support. Now you can mount your usb drives on your android device. For this feature you need Android OS 3.1. This is the first device to officially support OTG mode.

---- ATTENTION ----This will only work on rooted devices and requires a kernel that has the ums enabled. An OTG cable is required for using usb keys. It also requires a kernel with ums enabled and modules for ntfs/hfs/hfs+ etc.

(C) therau2000 2014,2015This app is available EXCLUSIVELY from Play Store to protect Users from malicious app tampering.A large number of phones/tablets provide basic USB OTG support for mouse and keyboard, but don't provide support for USB Mass Storage devices.

The purpose of this app is to determine if your phone/tablet can provide support for USB Mass Storage devices (e.g. USB Memory Stick) and specifically a connected USB Mass Storage device.

This app checks for the presence of any connected USB Mass Storage device. Screen is updated every couple of seconds, so is Conclusion when any device is connected. Special checks determine the presence of a Mobius ActionCam or #16 camera (with or without SD card inserted).

Android 3.1 introduced USB hostmode which allows the user to plug USB devices to your Android tablet in the same way as a Desktop PC and extend its functionality (if the tablet has the correct drivers of course).

This application will provide information about almost all currently plugged-in USB device (see below for more info about the 'almost').

If you download the accompanying databases, the application will also be able to provide you with additional info such as the Vendor of the device (which is not necessarily the brand!), the vendor's logo and the product name.

Each mode (Android/Linux) will provide slightly different information. For example Android mode will give you more information about a device's endpoints and interfaces, while Linux mode will give more information about the device itself (serial number, how it identifies itself, etc.)

Device Subclass resolution will be added in the next version.

I wrote this application as an exercise to explore fragments and the new USB host API. Hopefully it will be useful to someone else.

•The database is parsed from: http://www.linux-usb.org/usb.ids

•All logos are the property of their respective owners

•No ads.

•Source code: https://github.com/alt236/USB-Device-Info---Android

*** Please email me with any bugs/problems/feature requests. I cannot reply to market comments which can make debugging difficult. ***

SWR Calculator let you can calculate the Standing Wave Ratio with WATT or VOLT calculating methods

SWR is used as an efficiency measure for transmission lines, electrical cables that conduct radio frequency signals, used for purposes such as connecting radio transmitters and receivers with their antennas, and distributing cable television signals.

As of version 2.2, there's a new pro version that has auto-switching. If you have donated before, please contact me and I'll arrange a workaround for you as it's unfair for you to pay twice, thank you :)

Provides full functionality for the PowerA MOGA™ Pocket and MOGA™ Pro controllers.

NOTE: If you see the Pivot notification pop up that doesn't mean it's running! I cannot prevent it from seeing that the controller has connected since Bluetooth broadcasts are not ordered.

This application provides a virtual keyboard that simulates key presses when you use your MOGA controller. You can map any button or joystick on your MOGA to a key using profiles that are exportable in XML format for you to share with your friends.

For users with rooted phones there is a second mode available called Gamepad Mode. This mode creates a virtual gamepad that acts just like a standard USB gamepad. The main benefit of this mode is the ability to use the analog joysticks as more than just glorified directional pads.

• Virtual Keyboard• Configurable profiles• Profiles are saved as XML files on your SD card• Controller discovery and management• Auto-configures based on which kind of controller you're using (Pro/Pocket)• Gamepad Mode• • Only available on rooted devices• • Pretends to be a standard USB gamepad• • Allows for full analog input• Desktop Widgets• • Toggle the driver's state from your desktop• • With the long widget you can also change your active profile from the desktop

This product is not affiliated with, nor authorized, endorsed or licensed in any way by Bensussen Deutsch and Associates, Inc. (BD&A Inc.), its affiliates or subsidiaries. All trademarks are property of their respective holders.

Get the red carpet treatment for your SDR experience! Unlock the full potential of your Android device and use the pro features of SDR Touch. You will get:

- Spectrum Analyser - See 1 MHz of the spectrum real time on your screen. Identify potential signals of interest visually. - Audio Recording - Record your favourite tunes in STEREO straight from the radio or tape that random chatter you randomly came across on the HAM band - it's up to you!

How does it work:You need to have SDR Touch already installed on your Android powered device. Purchase and install SDR Touch Key. Next time you start SDR Touch you will be able to use the pro tools and the "DEMO MODE" will have disappeared!

If you have not tried SDR Touch yet, I highly recommend installing it first to check whether it is compatible with your USB dongle, phone or tablet.

Please don't purchase if your Android device or USB dongle is not compatible with SDR Touch!

Disclaimer: Keep in mind that SDR Touch is under development and it could be unstable. Also make sure you agree with the Terms and Conditions in SDR Touch and fully understand that it might against the law to listen to some non-standard radio frequencies in some countries. I am not liable for any damages caused by improper usage of SDR Touch and SDR Touch Key!

Turn your mobile phone or tablet into an affordable and portable software defined radio scanner. Listen and record live on air FM stereo radio stations with RDS (radio data text), weather reports, emergency stations, taxi traffic, airplane communications, audio of analogue TV broadcasts, HAM radio amateurs, digital broadcasts and many more! Depending on the hardware used, its radio frequency coverage could span between 50 MHz and 2.2 GHz. It currently demodulates broadcast FM, AM, narrowband FM, upper sideband (USB) and lower sideband (LSB) signals.

You need:

- USB digital TV (DVB-T) dongle with the RTL2832U chip. You may already have one of them laying around. They cost less than $10 - USB OTG (On-The-Go) cable - if you've ever connected a USB thumb drive to your Android device, you already have it. They are extremely cheap

Plug the USB dongle in the charging USB socket of your Android device via the OTG cable and run SDR Touch! It is that simple! Now you can listen to live radio on Android devices that don't have a built-in FM support, without requiring a data plan!

This application is currently experimental and may crash. Please, report any bugs to the email provided in the Help.

Using the RTL2832U driver you could use one of the following compatible USB DVB-T tuners:

Note: If you have a device with an older Android verison (3.1 and below), root must be present in order to connect with the USB dongle and USB Host must be enabled on the device.

By downloading SDR Touch you agree that the SDR Touch development team will not be held responsible for any legal issues that might be caused by usage or possession of the app. It is your responsibility to comply with your local law before downloading or using SDR Touch.